Coated cutting tool insert for machining of cast irons
US7132153B2 · kind B2 · utility
6Cited by
8References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2004 |
| Grant date | Nov 7, 2006 |
| Priority date | — |
| Expiry date | Sep 1, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/265
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention concerns a coated cemented carbide cutting tool insert particularly useful for turning of cast irons. The cutting tool insert is characterized by a cemented carbide body comprising WC, cubic carbonitrides, a W-alloyed Co binder phase, a surface zone of the cemented carbide body that is binder phase enriched and nearly free of cubic carbonitride phase, and a coating including an innermost layer of TiCxNyOz with equiaxed grains, a layer of TiCxNyOz with columnar grains and at least one layer of Al2O3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.